Finding the Third Proportional to 7,139,143 and 10,876,020

Step by Step Solution

1. Step 1: Write the proportion equation
   7,139,143 : 10,876,020 = 10,876,020 : x
2. Step 2: Convert to fraction form
   7,139,143/10,876,020 = 10,876,020/x
3. Step 3: Cross multiply
   7,139,143x = 10,876,020 × 10,876,020
4. Step 4: Simplify right side
   7,139,143x = 118,287,811,040,400
5. Step 5: Solve for x
   x = 118,287,811,040,400/7,139,143
6. Step 6: Final answer
   x = 16,568,909.05